Arkansas coach Bobby Petrino confirmed Friday that running back Knile Davis is expected to miss the season because of a left ankle injury. The injury is a major blow to the preseason expectations for the Razorbacks, who were 10-3 and reached their first BCS bowl game last season. Arkansas coach Bobby Petrino confirmed Friday that running back Knile Davis is expected to miss the season because of a left ankle injury. The injury is a major blow to the preseason expectations for the Razorbacks, who were 10-3 and reached their first BCS bowl game last season. Read more: http://espn.go.com/college-football...s-razorbacks-expect-knile-davis-miss-all-2011